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Ion Beams Mean a Quantum Leap for Color-Center Qubits


Ion Beams Mean a Quantum Leap for Color-Center Qubits
Achieving the immense promise of quantum computing requires new developments at every level, including the computing hardware itself. A Lawrence Berkeley National Laboratory (Berkeley Lab)-led international team of researchers has discovered a way to use ion beams to create long strings of “color center” qubits in diamond. Their work is detailed in the journal Applied Physics Letters.
The authors includes several from Berkeley Lab: Arun Persaud, who led the study, and Thomas Schenkel, head of the Accelerator Technology and Applied Physics (ATAP) Division’s Fusion Science & Ion Beam Technology Program, as well as Casey Christian (now with Berkeley Lab’s Physics Division), Edward Barnard of Berkeley Lab’s Molecular Foundry, and ATAP affiliate Russell E. Lake. ....

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Applying Quantum Computing to a Particle Process


Date Time
Applying Quantum Computing to a Particle Process
An ATLAS particle collision event display from 2018, showing the spray of particles (orange lines) emanating from the collision of protons, and the detector readout (squares and rectangles). (Credit: ATLAS collaboration)
A team of researchers at Lawrence Berkeley National Laboratory (Berkeley Lab) used a quantum computer to successfully simulate an aspect of particle collisions that is typically neglected in high-energy physics experiments, such as those that occur at CERN’s Large Hadron Collider.
The quantum algorithm they developed accounts for the complexity of parton showers, which are complicated bursts of particles produced in the collisions that involve particle production and decay processes. ....

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Ideas, Inventions And Innovations : Study: X-Rays Surrounding 'Magnificent 7' May Be Traces of Sought-After Particle


Ideas, Inventions And Innovations
Study: X-Rays Surrounding ‘Magnificent 7’ May Be Traces of Sought-After Particle
Researchers say they may have found proof of theorized axions, and possibly dark matter, around group of neutron stars.
An artistic rendering of the XMM-Newton (X-ray Multi-Mirror Mission) space telescope. A study of archival data from the XMM-Newton and the Chandra X-ray space telescopes found evidence of high levels of X-ray emission from the nearby Magnificent Seven neutron stars, which may arise from the hypothetical particles known as axions. 
A new study, led by a theoretical physicist at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), suggests that never-before-observed particles called axions may be the source of unexplained, high-energy X-ray emissions surrounding a group of neutron stars. ....

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